Abstract
Background
The aims of this analysis were: to evaluate the impact of timing of ablation on the rate of atrial arrhythmias recurrence, verify if the timing of ablation impact differently in patients with paroxysmal and persistent AF.
Methods
Three thousand two hundred and five patients (60.5 ± 10 years, female 28.4%%, 78.8%% paroxysmal AF) were included in the analysis. All patients underwent only cryoballoon (CB) pulmonary vein (PV) isolation during the index procedure.
Results
The mean procedure time was 102.8 ± 50 min, with a mean fluoroscopy time of 26.3 ± 49 min. Acute PV isolation was achieved in 11760/11793 (99.7%) PVs. A total of 91 (2.8%) patients experienced a procedure-related complication. During the observation period 913/3205 (28.5%) patients had at least one atrial arrhythmias episode: 28% of patients with paroxysmal AF vs 33% of patients with persistent AF. In multivariate analysis, persistent AF together with time from symptomatic AF diagnosis to ablation, female sex, and ablation time showed to be significant predictors for AF recurrence. In particular, months from first symptomatic AF episode > 18 months was a significant predictor of AF recurrence (HR = 1.23, 95% CI = 1.03—1.46, p = 0.020).
In patients with paroxysmal AF, the multivariate analysis confirmed that months from first symptomatic AF episode > 18 month was an independent predictor of AF recurrence together with age > 62 years and female sex. In patients with persistent AF, the time from persistent AF showed to be significant predictor for AF recurrence.
Conclusions
In this multicenter analysis, time from first symptomatic AF episode > 18 months was a significant predictor of AF recurrence after CB PV isolation.
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Data availability
The data underlying this article will be shared on reasonable request to the corresponding author.
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Giuseppe Stabile and Roberto Verlato received modest consultancy and speaker’s fees from Medtronic. Giulio Molon received modest consultancy fees from Medtronic and Boston Scientific and speaker’s fees from Medtronic, Boston Scientific, St. Jude, and Boehringer Ingelheim. Claudio Tondo serves as a member of Medtronic European Advisory Board and Boston Scientific International Advisory Board. He received lecture and proctor fees from Medtronic, Abbott Medical, Biosense Webster, and Boston Scientific. All other authors have reported that they have no relationships relevant to the contents of this manuscript to disclose.
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Stabile, G., Verlato, R., Arena, G. et al. Timing of cryoballoon pulmonary vein isolation to prevent atrial fibrillation recurrence. J Interv Card Electrophysiol 67, 609–616 (2024). https://doi.org/10.1007/s10840-023-01636-3
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DOI: https://doi.org/10.1007/s10840-023-01636-3